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A. SHEDLOGK. V I Traversi ng Inking Roller for Printing'Pf'esses.

No. 234,433, Patented Nov. 16, 1880.

74 z'Z /zesses. m fnwiztoz Nrran rames ALFRED SHEDLOOK, OF NEW YORK, N.Y., ASSIGNOR TO FREDERICK W.

ATEN'I rrren.

GRIFFITH'AND GEORGE P. BYRNE, OF SAME PLACE.

TRAVERSING lNKlNG-ROLLER FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 234,433, dated November16, 1880.

Application filed March 12, 1879.

To all whom it may concern:

Be it known that I, ALFRED SrtnDLocK, of the city of New York, countyand State of New York, have invented a certain new and usefulImprovement in Traversing Rollers for Printing-Presses, of which thefollowing is a specification.

This invention relates to traversing rollers of printing-presses fordistributing the ink before it is taken up by the type-inking rollers;and it consists of a simple and eftective means for causing the rollerto move back and forth longitudinally on the ink-receiving roller, aswill be fully hereinafter described by reference had to the accompanyingdrawings, forming part of this specification, in which- Figure lisafront elevation of my improved traversing roller as applied to anink-receiving roller, and Fig. 2 is an end view of the same.

The ink-roller a is constructed to rotate inbearings in the standards I)and b, and is caused to revolve by being connected at the end a of itsshaft to some rotating part of the printing-press, to which thisimproved distributing device is attached by means of any ordinarygearing.

The traverse-roller is made in sections 0 c c, secured by means ofset-screws to the shaft (7, which tits in open bearings providedtherefor in the upper ends of the standards I) b, so that the roller 0 cc rests on the ink-roller a, and is caused to revolve thereby; or motionmay be imparted directly to it by means ot'a belt and pulley. The shaftd is held in place by the pins (1 d. On one end of the shaft (1, outsideof the standard I), is secured the sleeve or cylinder 0, which isprovided with a right and left hand half thread, 0 and c and the ends ofthese threads, where they meet at the central part of the sleeve,incline gradually from the bottom of the threads to the peri 'ihery ofthe sleeve or cylinder, as shown at c. Projecting from the standard I)under the sleeve 0 is the stud f, the end of which is forked, and inwhich is pivoted the double-toed pawl g, which is so placed that whenone toe is in one of the screw-threads the otherjust clears the sleeve.

The roller 0 c c and sleeve 6 revolve in the direction indicated by thearrow, and when the parts are in the position shown in the drawings thetoo 9 of the pawl g is in the righthand thread 0 and the roller 0 ismoving longitudinally in the direction indicated by the arrow 00, and asthe inclined part 6 moves over the toe g this end of the pawl is throwndown and the other end, 9 thrown up, so as to catch in the left-handthread 0 the end y then being clear of the sleeve, and the roller 0reverses its longitudinal motion until the toe g is thrown down bycoming in contact with the incline at the end of the thread 0 the toe gbeing then thrown up into the thread 6, thus imparting to the roller e alongitudinal reciprocating movement from a constant rotary motion.

It will be observed that the roller 0 is readily removed for the purposeof cleaning it, 850., by merely taking out the pins d d, and is replacedready to use by dropping it in its bearings, no adjustment whatever ofthe pawl g being required; and it will also be observed that the morethe ends of the toes g and g wear the more certain they are to catch inthe threads, and consequently it is impossible for the roller to getlocked from the wearing of the partsa thing that often happens with theordinary double-threaded traversing movement of printing-presses.

The object of making the rollcrc in sections adjustable along the shaftd is to allow ofthe proper distribution of the ink where the formrequires more ink in one part of it than another, and one or more of thesections may be removed where the form is small, thus savingconsiderable ink, as it is only taken from the traversing roller by theink-taking roller, which is shown in dotted lines it at Fig. 2.

What I claim, and desire to secure by Letters Patent, is

In a printing-press, the combination of the traversing ink-roller 0 withthe right-and-lefthand screw-sleeve e and double pawl y, constructed andarranged substantially as de scribed, so that when the central terminusof either of the screw-threads comes in contact with its toe of the pawlsaid toe is pushed clear of the sleeve, and the other toe of the pawl isthrown into the other screw-thread, substantially as hereinbefore setforth.

In witness whereof I have hereunto set my hand this 8th day of March,1879.

ALFRED SHEDLOGK.

Witnesses:

H. D. WILLIAMS, Gno. P. BYRNE.

